公开(公告)号：US20140314577A1

公开(公告)日：2014-10-23

申请号：US14176646

申请日：2014-02-10

Applicant: ROLLS-ROYCE PLC

Inventor： Kenneth Franklin UDALL ,  David Michael BEAVEN ,  Mark John HOULE

IPC: B64C11/04

CPC classification number: B64C11/04 ,  B64C11/26

Abstract: A propeller blade retention arrangement having a propeller blade comprising in radial sequence an aerofoil portion, a shank portion and a root portion. The root portion having first cross-sectional area close to the shank portion and second cross-sectional area at the end distal to the aerofoil portion, wherein the second cross-sectional area is greater than the first cross-sectional area. At least two cheeks each having an inner surface arranged to abut the root portion, an outer surface that is threaded and edge surfaces that abut another of the at least two cheeks; wherein the at least two cheeks are arranged to surround the root portion in circumferential abutment. A collar having a threaded inner surface arranged to threadingly engage the outer surfaces of the at least two cheeks.

Abstract translation: 一种具有螺旋桨叶片的螺旋桨叶片保持装置，其具有径向顺序地包括机翼部分，柄部分和根部分。 所述根部具有接近所述柄部的第一横截面面积和在所述机翼部分远端的一端的第二横截面积，其中所述第二横截面面积大于所述第一横截面面积。 每个具有布置成邻接根部的内表面的至少两个脸颊，具有螺纹的外表面和与所述至少两个脸颊中的另一个相邻的边缘表面; 其中所述至少两个脸颊被布置成围绕所述根部部分周向邻接。 具有螺纹内表面的套环，布置成与所述至少两个脸颊的外表面螺纹接合。

公开(公告)号：US20150198174A1

公开(公告)日：2015-07-16

申请号：US14591432

申请日：2015-01-07

Applicant: ROLLS-ROYCE PLC

Inventor： Mark John HOULE

IPC: F04D29/32 ,  F04D19/00 ,  F04D29/66

CPC classification number: F04D29/326 ,  F01D5/3061 ,  F01D5/34 ,  F01D11/008 ,  F04D19/002 ,  F04D29/668

Abstract: A blisk has a rotor disk part and a circumferential row of blades extending from and integral with the disk part. A plurality of annulus fillers is provided to bridge the gaps between adjacent blades. Each annulus filler has an outer lid which defines an airflow surface for air being drawn through the engine in an axial airflow direction, and an inner support structure which connects to the disk part to support the lid on the blisk. Opposite edges of the lid make respective lines of contact with a suction side of one blade and a pressure side of an adjacent blade.

Abstract translation: 翼片具有从盘部分延伸并与盘部分成一体的转子盘部分和周向列的叶片。 提供多个环形填料以桥接相邻叶片之间的间隙。 每个环形填料都具有外盖，该外盖限定了用于在轴向气流方向上被引导通过发动机的空气的气流表面，以及内部支撑结构，其连接到盘部分以将盖支撑在翼片上。 盖的相对边缘使得与一个叶片的吸力侧和相邻叶片的压力侧的相应接触线。